If you follow Moore's law 18 months rule on technology turnover think how many rounds of American re-investments "seed" capital have been sucked into "green smoke" dead ends ..
Add in the government weight drawing money down these holes and America technology lead evaporates in a blink of an eye...
Capital is the blood of an economy ...Americas economy dies when its Capital bleeds out ...and "green" is a bleeding wound
I wish more Americans understood that.